I don’t know how long this has been there, but I just stumbled onto a free online archive of old newspaper scans on google. While their archive is not complete by any means, they do have a large number of different newspapers (some dating back to the 1800s, others as recent as the 2000s) and many issues of each paper. The scans even include things like comics and TV schedules in papers which originally included them. Looking at those old
schedules is like a trip back in time, both for the shows themselves and for the style of the listings (when was the last time you saw channel numbers in the black and white boxes like that?). Meanwhile, it’s fun looking at what comics where in the papers back in the day (and even before “the day”), and in some cases seeing how much they’ve changed over the years.
You can also zoom in on everything:
On a side note; I originally stumbled onto this while checking out this site full of old TV schedules (http://www.nickandmore.com/schedules/networks/). This site lists daily schedules for different networks in different years, in text files.
While the schedules aren’t always complete, it is a great resource for seeing what was on and when (check out the mid-80s Nickelodeon schedules for a nostalgia fest).